For some reason, this symbol gets redefined, which causes a warning.
Hide the warning by checking whether it is already defined.
Change-Id: I70ffc9a799e0b536d6aba7d00f828bd6d915d94c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39183
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
b3bfb2a1a7